The Vietnamese word "đá cuội" refers to small, rounded stones or pebbles that are often found in rivers or along the shores. These stones are typically smooth due to the natural process of erosion. In English, you can think of "đá cuội" as similar to "cobble" or "pebble."
While "đá cuội" specifically refers to small stones, in some contexts, it can also imply durability or resilience, much like how these stones withstand the test of time in nature.